About Us

Altherm Northland are proud to be manufacturers of Altherm Window Systems which is one of the most respected brands in the New Zealand building industry. The name is synonymous with windows and doors of quality and innovation. Prominent in aluminium joinery for over 40 years, Altherm has established a strong following with architects and designers.

Visit the Altherm Northland showroom at 18 Hewlett Street, Whangarei, for a comprehensive, hands-on look at our joinery and receive expert advice from our experienced team. Contact us today for more information or to request mail out of our informative brochures and material.